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Finding the Fourth Proportional to 327,809.98, 491,799.48 and 178,011.82

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Solution

The fourth proportional to 327,809.98, 491,799.48 and 178,011.82 is: 267,063.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,809.98 : 491,799.48 = 178,011.82 : x
  2. Step 2: Convert to fraction form
    327,809.98/491,799.48 = 178,011.82/x
  3. Step 3: Cross multiply
    327,809.98x = 491,799.48 × 178,011.82
  4. Step 4: Simplify right side
    327,809.98x = 87,546,120,509.85
  5. Step 5: Solve for x
    x = 87,546,120,509.85/327,809.98
  6. Step 6: Final answer
    x = 267,063.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.